Silence is not the absence of sound, but the presence of an unspoken truth.

Collaboration is key—no single organization can solve the world’s environmental challenges alone.

I think the most important thing is to have a good story and to tell it well.

自由民主在世界范围内的传播并非不可避免，但它是最有可能的结果。

Old soldiers never die. They just fade away.

The Internet is a living, evolving entity that requires constant attention and care.

说真话的最大好处是你不需要记住你说了什么。